EP1264902A3 - Welded steel pipe for hydroforming and method for making the same - Google Patents

Welded steel pipe for hydroforming and method for making the same Download PDF

Info

Publication number
EP1264902A3
EP1264902A3 EP02012120A EP02012120A EP1264902A3 EP 1264902 A3 EP1264902 A3 EP 1264902A3 EP 02012120 A EP02012120 A EP 02012120A EP 02012120 A EP02012120 A EP 02012120A EP 1264902 A3 EP1264902 A3 EP 1264902A3
Authority
EP
European Patent Office
Prior art keywords
steel pipe
less
welded steel
hydroforming
making
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP02012120A
Other languages
German (de)
French (fr)
Other versions
EP1264902B1 (en
EP1264902A2 (en
Inventor
Takaaki Toyooka
Masatoshi Aratani
Yoshikazu Kawabata
Yuji Hashimoto
Akira Yorifuji
Takatoshi Okabe
Takuya Nagahama
Mitsuo Kimura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Steel Corp
Original Assignee
Kawasaki Steel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Publication of EP1264902A2 publication Critical patent/EP1264902A2/en
Publication of EP1264902A3 publication Critical patent/EP1264902A3/en
Application granted granted Critical
Publication of EP1264902B1 publication Critical patent/EP1264902B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/10—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12771—Transition metal-base component
    • Y10T428/12861—Group VIII or IB metal-base component
    • Y10T428/12951—Fe-base component
    • Y10T428/12958—Next to Fe-base component
    • Y10T428/12965—Both containing 0.01-1.7% carbon [i.e., steel]

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

A welded steel pipe is formed by heating or soaking an untreated welded steel pipe having a steel composition containing, on the basis of mass percent: about 0.05% to about 0.2% C; about 0.2% or less of Si; about 1.5% or less of Mn; about 0.1% or less of P; about 0.01% or less of S; about 0.1% or less of Al; and about 0.01% or less of N; and by reduction-rolling the treated steel pipe at a cumulative reduction rate of at least about 35% and a final rolling temperature of about 500°C to about 900°C. The welded steel pipe exhibits excellent hydroformability, i.e., has a tensile strength of at least about 400 MPa and an n×r product of at least about 0.22. The treated steel pipe is preferably reduction-rolled at a cumulative reduction rate of at least about 20% below the Ar3 transformation point. The welded steel pipe is suitable for forming structural components.
EP02012120A 2001-05-31 2002-05-31 Welded steel pipe for hydroforming and method for making the same Expired - Lifetime EP1264902B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001163608 2001-05-31
JP2001163608 2001-05-31

Publications (3)

Publication Number Publication Date
EP1264902A2 EP1264902A2 (en) 2002-12-11
EP1264902A3 true EP1264902A3 (en) 2003-10-15
EP1264902B1 EP1264902B1 (en) 2005-07-27

Family

ID=19006544

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02012120A Expired - Lifetime EP1264902B1 (en) 2001-05-31 2002-05-31 Welded steel pipe for hydroforming and method for making the same

Country Status (9)

Country Link
US (1) US6723453B2 (en)
EP (1) EP1264902B1 (en)
KR (1) KR100884515B1 (en)
CN (1) CN1201027C (en)
BR (1) BR0202012B1 (en)
CA (1) CA2388398C (en)
DE (1) DE60205179T2 (en)
ES (1) ES2247224T3 (en)
MX (1) MXPA02005390A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5228492B2 (en) * 2006-02-09 2013-07-03 新日鐵住金株式会社 Manufacturing method of bottle member for airbag inflator
EA013145B1 (en) * 2007-03-30 2010-02-26 Сумитомо Метал Индастриз, Лтд. Oil assortment pipes for expansion in a well and a method for production thereof
KR101043262B1 (en) * 2008-11-12 2011-06-21 이은두 Rice bucket
US9528327B1 (en) 2011-09-23 2016-12-27 Global Tubing Llc Coiled tubing optimized for long, horizontal completions
WO2017135179A1 (en) * 2016-02-03 2017-08-10 Ｊｆｅスチール株式会社 Steel for high heat input welding
CN105697888B (en) * 2016-03-17 2018-01-30 上海飞轮有色新材料股份有限公司 The processing technology of double water innercooling electric generator rotor wire connecting copper pipe
CN109440005A (en) * 2018-11-14 2019-03-08 河钢股份有限公司承德分公司 A kind of SAPH440 crystal grain refinement steel and its production method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0949050A (en) * 1995-05-30 1997-02-18 Kobe Steel Ltd High strength hot rolled steel sheet small in deterioration in yield strength after forming, pipe formed by using the same and production of high strength hot rolled steel sheet
JPH11172376A (en) * 1997-12-15 1999-06-29 Nkk Corp High strength electric resistance welded steel pipe excellent in hydraulic bulge formability and manufacturing method thereof
EP0940476A1 (en) * 1997-04-30 1999-09-08 Kawasaki Steel Corporation Steel material having high ductility and high strength and process for production thereof
JP2000144329A (en) * 1998-11-13 2000-05-26 Kawasaki Steel Corp Steel pipe with excellent strength-ductility balance
EP1231289A1 (en) * 2000-06-07 2002-08-14 Nippon Steel Corporation Steel pipe having high formability and method for producing the same
EP1264645A2 (en) * 2001-05-31 2002-12-11 Kawasaki Steel Corporation Welded steel pipe having excellent hydroformability and method for making the same

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3853428B2 (en) * 1995-08-25 2006-12-06 Ｊｆｅスチール株式会社 Method and equipment for drawing and rolling steel pipes
WO1999000525A1 (en) 1997-06-26 1999-01-07 Kawasaki Steel Corporation Ultrafine-grain steel pipe and process for manufacturing the same

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0949050A (en) * 1995-05-30 1997-02-18 Kobe Steel Ltd High strength hot rolled steel sheet small in deterioration in yield strength after forming, pipe formed by using the same and production of high strength hot rolled steel sheet
EP0940476A1 (en) * 1997-04-30 1999-09-08 Kawasaki Steel Corporation Steel material having high ductility and high strength and process for production thereof
JPH11172376A (en) * 1997-12-15 1999-06-29 Nkk Corp High strength electric resistance welded steel pipe excellent in hydraulic bulge formability and manufacturing method thereof
JP2000144329A (en) * 1998-11-13 2000-05-26 Kawasaki Steel Corp Steel pipe with excellent strength-ductility balance
EP1231289A1 (en) * 2000-06-07 2002-08-14 Nippon Steel Corporation Steel pipe having high formability and method for producing the same
EP1264645A2 (en) * 2001-05-31 2002-12-11 Kawasaki Steel Corporation Welded steel pipe having excellent hydroformability and method for making the same

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 06 30 June 1997 (1997-06-30) *
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 11 30 September 1999 (1999-09-30) *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 08 6 October 2000 (2000-10-06) *

Also Published As

Publication number Publication date
KR100884515B1 (en) 2009-02-18
CN1201027C (en) 2005-05-11
MXPA02005390A (en) 2002-12-09
DE60205179D1 (en) 2005-09-01
BR0202012A (en) 2003-04-22
US6723453B2 (en) 2004-04-20
CA2388398C (en) 2009-05-26
DE60205179T2 (en) 2006-03-30
CN1427087A (en) 2003-07-02
BR0202012B1 (en) 2010-06-29
US20020192495A1 (en) 2002-12-19
KR20020092238A (en) 2002-12-11
EP1264902B1 (en) 2005-07-27
ES2247224T3 (en) 2006-03-01
EP1264902A2 (en) 2002-12-11
CA2388398A1 (en) 2002-11-30

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